O2Fly Seats focus on bringing back passenger comfort while reducing weight. This is achieved with a bladder system, combining comfortable, durable foam and an inflatable core. This creates a lightweight seat that actually provides comfort. Each O2Fly seat comes installed with a tray table arm rest. When not in use, the tray table serves as a divider between you and your seatmate. In use, it's as simple as swinging it up, no more relying on someone else not to recline to let you use your tray.